- Plumbers
- Pipefitters
- Steamfitters
- Electricians
- Insulation workers
- Motor vehicle mechanics
- Carpenters
- Laborers
- Boilermakers
- Welders and cutters
- Janitors
| - Construction
- Shipbuilding and repairing
- Chemicals and other manufacturing
- Nonmetallic mineral stone products
- Railways
- Yarn, thread, and fabric mills
- Trucking
- Plastic and rubber manufacture
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